TOOL GRINDING MACHINE
First Claim
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1. A machine for grinding rotary cutting tools, said machine comprising:
- a table,a workpiece spindle for rotation of a workpiece about a workpiece axis;
a tool spindle for rotation of a tool about a tool axis,a vertical assembly having a first side facing said workpiece spindle;
said tool spindle being located on said first side and being movable vertically along said first side of said vertical assembly, said tool spindle being capable of swiveling about a swivel axis extending generally perpendicular to said first side;
said tool spindle being oriented slanted with respect to said first slide at a predetermined slant angle.
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Abstract
A multi-axis computer controlled machine tool for relief grinding of single and multiple start threaded hobs (46). The machine comprises an angular oriented spindle (65) that can be angularly (swivel) positioned thereby providing the flexibility to utilize both cup-shaped grinding wheels (55) and pencil-shaped grinding wheels (52) for grinding of hob and milling cutter relieved tooth geometry without exchanging grinding spindles assemblies or modifying the machine construction to accommodate two types of grinding methods or utilizing an additional machine axis for the spindle re-orientation.
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Citations
15 Claims
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1. A machine for grinding rotary cutting tools, said machine comprising:
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a table, a workpiece spindle for rotation of a workpiece about a workpiece axis; a tool spindle for rotation of a tool about a tool axis, a vertical assembly having a first side facing said workpiece spindle; said tool spindle being located on said first side and being movable vertically along said first side of said vertical assembly, said tool spindle being capable of swiveling about a swivel axis extending generally perpendicular to said first side; said tool spindle being oriented slanted with respect to said first slide at a predetermined slant angle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of grinding rotary cutting tools with a grinding wheel on a grinding machine, said method comprising:
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providing for rotation of said rotary cutting tool about a workpiece axis; providing for rotation of said grinding wheel about a tool axis; providing relative movement between said rotary cutting tool and said grinding wheel in up to three mutually perpendicular directions; providing for swiveling of said grinding wheel about a swivel axis, said swivel axis being perpendicular to a vertically oriented first side of a vertical assembly on said grinding machine, said first side facing said rotary cutting tool, said grinding wheel being oriented slanted with respect to said first side at a predetermined slant angle; bringing said grinding wheel and said rotary cutting tool into engagement with one another and moving said grinding wheel and said rotary cutting tool relative to one another to effect at least one of a radial cam motion and an offset radial cam motion. - View Dependent Claims (12, 13, 14, 15)
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Specification